thoerup/traininfo/ShortcutActivity.java

package dk.thoerup.traininfo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import dk.thoerup.android.traininfo.common.StationEntry;
import dk.thoerup.traininfo.WelcomeScreen.ListType;

public class ShortcutActivity extends Activity {
    
    final static int SHOW_DEPARTURES = 1000;
    final static int SHOW_STATIONS = 2000;
    
    
    StationEntry station;
    Button okBtn;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        // Resolve the intent

        final Intent intent = getIntent();
        final String action = intent.getAction();

        // If the intent is a request to create a shortcut, we'll do that and exit

        if (Intent.ACTION_CREATE_SHORTCUT.equals(action)) {
                setContentView(R.layout.shortcut);
                
                Button cancelBtn = (Button) findViewById(R.id.shortcut_cancel);
                cancelBtn.setOnClickListener( new OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                        ShortcutActivity.this.setResult(Activity.RESULT_CANCELED);
                                        ShortcutActivity.this.finish();
                                }                       
                });
                
                
                okBtn = (Button) findViewById(R.id.shortcut_ok);
                okBtn.setEnabled(false);
                okBtn.setOnClickListener( new OnClickListener() {
                                @Override
                                public void onClick(View v) {
                                        setupShortcut(station);
                                        finish();
                                }
                });
                Button btn = (Button)findViewById(R.id.nearest);
                btn.setOnClickListener(new StationListener(ListType.ListNearest));
                btn = (Button)findViewById(R.id.search);
                btn.setOnClickListener(new StationListener(ListType.ListSearch));
                btn = (Button)findViewById(R.id.favorites);
                btn.setOnClickListener(new StationListener(ListType.ListFavorites));
                
        } else {        
                //launched by the user clicking on the shortcut
                String stationStr = intent.getStringExtra("station");
                
                if (stationStr != null) { //haven't reproduced it, but got a stacktrace where stationStr apparently was null
                        StationEntry station = StationEntry.fromCSV(stationStr);

                        Intent launcher = new Intent( this, DepartureList.class );
                        launcher.putExtra("stationbean", station);
                        startActivityForResult(launcher, SHOW_DEPARTURES);
                } else {
                        Toast.makeText(this, "Invalid TrainInfo shortcut - please delete and re-create", Toast.LENGTH_LONG).show();
                }
        }
    }

    /**
     * This function creates a shortcut and returns it to the caller.  There are actually two 
     * intents that you will send back.
     * 
     * The first intent serves as a container for the shortcut and is returned to the launcher by 
     * setResult().  This intent must contain three fields:
     * 
     * <ul>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
     * the shortcut.</li>
     * <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut's icon, if provided as a
     * bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
     * a drawable resource.</li>
     * </ul>
     * 
     * If you use a simple drawable resource, note that you must wrapper it using
     * {@link android.content.Intent.ShortcutIconResource}, as shown below.  This is required so
     * that the launcher can access resources that are stored in your application's .apk file.  If 
     * you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras 
     * bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
     * 
     * The shortcut intent can be any intent that you wish the launcher to send, when the user 
     * clicks on the shortcut.  Typically this will be {@link android.content.Intent#ACTION_VIEW} 
     * with an appropriate Uri for your content, but any Intent will work here as long as it 
     * triggers the desired action within your Activity.
     */
    private void setupShortcut(StationEntry station) {
        // First, set up the shortcut intent.  
        Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
        shortcutIntent.setClassName(this, this.getClass().getName());
        shortcutIntent.putExtra("station", station.toCSV() );

        
        // Then, set up the container intent (the response to the caller)
        Intent intent = new Intent();
        intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
        intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, station.getName() );
        Parcelable iconResource = Intent.ShortcutIconResource.fromContext(this,  R.drawable.train);
        intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);

        
        // Now, return the result to the launcher
        setResult(RESULT_OK, intent);
    }

        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                super.onActivityResult(requestCode, resultCode, data);
                
                switch  (requestCode) {
                case SHOW_DEPARTURES:
                        finish();
                        break;
                        
                case SHOW_STATIONS:
                        if (data != null) {
                                station = (StationEntry) data.getSerializableExtra("station");
                                if (station != null) {
                                        okBtn.setEnabled(true);
                                        
                                        TextView tv = (TextView) findViewById(R.id.current_selection);
                                        tv.setText( station.getName() );
                                        
                                }
                        }
                        break;
                }
        }

        class StationListener implements OnClickListener{
                ListType launchType;
                StationListener(ListType type) {
                        launchType = type;
                }
                
                @Override
                public void onClick(View v) {
                        Intent intent = new Intent(ShortcutActivity.this, StationList.class);
                        intent.putExtra("type", launchType);
                        intent.putExtra("shortcut", true);
                        ShortcutActivity.this.startActivityForResult(intent, SHOW_STATIONS);
                }
                
        }
    
    
}
1	package dk.thoerup.traininfo;
2
3	import android.app.Activity;
4	import android.content.Intent;
5	import android.os.Bundle;
6	import android.os.Parcelable;
7	import android.view.View;
8	import android.view.View.OnClickListener;
9	import android.widget.Button;
10	import android.widget.TextView;
11	import android.widget.Toast;
12	import dk.thoerup.android.traininfo.common.StationEntry;
13	import dk.thoerup.traininfo.WelcomeScreen.ListType;
14
15	public class ShortcutActivity extends Activity {
16
17	final static int SHOW_DEPARTURES = 1000;
18	final static int SHOW_STATIONS = 2000;
19
20
21	StationEntry station;
22	Button okBtn;
23
24	@Override
25	public void onCreate(Bundle icicle) {
26	super.onCreate(icicle);
27
28	// Resolve the intent
29
30	final Intent intent = getIntent();
31	final String action = intent.getAction();
32
33	// If the intent is a request to create a shortcut, we'll do that and exit
34
35	if (Intent.ACTION_CREATE_SHORTCUT.equals(action)) {
36	setContentView(R.layout.shortcut);
37
38	Button cancelBtn = (Button) findViewById(R.id.shortcut_cancel);
39	cancelBtn.setOnClickListener( new OnClickListener() {
40
41	@Override
42	public void onClick(View v) {
43	ShortcutActivity.this.setResult(Activity.RESULT_CANCELED);
44	ShortcutActivity.this.finish();
45	}
46	});
47
48
49	okBtn = (Button) findViewById(R.id.shortcut_ok);
50	okBtn.setEnabled(false);
51	okBtn.setOnClickListener( new OnClickListener() {
52	@Override
53	public void onClick(View v) {
54	setupShortcut(station);
55	finish();
56	}
57	});
58	Button btn = (Button)findViewById(R.id.nearest);
59	btn.setOnClickListener(new StationListener(ListType.ListNearest));
60	btn = (Button)findViewById(R.id.search);
61	btn.setOnClickListener(new StationListener(ListType.ListSearch));
62	btn = (Button)findViewById(R.id.favorites);
63	btn.setOnClickListener(new StationListener(ListType.ListFavorites));
64
65	} else {
66	//launched by the user clicking on the shortcut
67	String stationStr = intent.getStringExtra("station");
68
69	if (stationStr != null) { //haven't reproduced it, but got a stacktrace where stationStr apparently was null
70	StationEntry station = StationEntry.fromCSV(stationStr);
71
72	Intent launcher = new Intent( this, DepartureList.class );
73	launcher.putExtra("stationbean", station);
74	startActivityForResult(launcher, SHOW_DEPARTURES);
75	} else {
76	Toast.makeText(this, "Invalid TrainInfo shortcut - please delete and re-create", Toast.LENGTH_LONG).show();
77	}
78	}
79	}
80
81	/**
82	* This function creates a shortcut and returns it to the caller. There are actually two
83	* intents that you will send back.
84	*
85	* The first intent serves as a container for the shortcut and is returned to the launcher by
86	* setResult(). This intent must contain three fields:
87	*
88	* <ul>
89	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_INTENT} The shortcut intent.</li>
90	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_NAME} The text that will be displayed with
91	* the shortcut.</li>
92	* <li>{@link android.content.Intent#EXTRA_SHORTCUT_ICON} The shortcut's icon, if provided as a
93	* bitmap, <i>or</i> {@link android.content.Intent#EXTRA_SHORTCUT_ICON_RESOURCE} if provided as
94	* a drawable resource.</li>
95	* </ul>
96	*
97	* If you use a simple drawable resource, note that you must wrapper it using
98	* {@link android.content.Intent.ShortcutIconResource}, as shown below. This is required so
99	* that the launcher can access resources that are stored in your application's .apk file. If
100	* you return a bitmap, such as a thumbnail, you can simply put the bitmap into the extras
101	* bundle using {@link android.content.Intent#EXTRA_SHORTCUT_ICON}.
102	*
103	* The shortcut intent can be any intent that you wish the launcher to send, when the user
104	* clicks on the shortcut. Typically this will be {@link android.content.Intent#ACTION_VIEW}
105	* with an appropriate Uri for your content, but any Intent will work here as long as it
106	* triggers the desired action within your Activity.
107	*/
108	private void setupShortcut(StationEntry station) {
109	// First, set up the shortcut intent.
110	Intent shortcutIntent = new Intent(Intent.ACTION_MAIN);
111	shortcutIntent.setClassName(this, this.getClass().getName());
112	shortcutIntent.putExtra("station", station.toCSV() );
113
114
115	// Then, set up the container intent (the response to the caller)
116	Intent intent = new Intent();
117	intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
118	intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, station.getName() );
119	Parcelable iconResource = Intent.ShortcutIconResource.fromContext(this, R.drawable.train);
120	intent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, iconResource);
121
122
123	// Now, return the result to the launcher
124	setResult(RESULT_OK, intent);
125	}
126
127	@Override
128	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
129	super.onActivityResult(requestCode, resultCode, data);
130
131	switch (requestCode) {
132	case SHOW_DEPARTURES:
133	finish();
134	break;
135
136	case SHOW_STATIONS:
137	if (data != null) {
138	station = (StationEntry) data.getSerializableExtra("station");
139	if (station != null) {
140	okBtn.setEnabled(true);
141
142	TextView tv = (TextView) findViewById(R.id.current_selection);
143	tv.setText( station.getName() );
144
145	}
146	}
147	break;
148	}
149	}
150
151	class StationListener implements OnClickListener{
152	ListType launchType;
153	StationListener(ListType type) {
154	launchType = type;
155	}
156
157	@Override
158	public void onClick(View v) {
159	Intent intent = new Intent(ShortcutActivity.this, StationList.class);
160	intent.putExtra("type", launchType);
161	intent.putExtra("shortcut", true);
162	ShortcutActivity.this.startActivityForResult(intent, SHOW_STATIONS);
163	}
164
165	}
166
167
168	}